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प्रश्न
If y = 2x2 + a2 + 22 then `dy/dx` = ______.
विकल्प
4x
4x + 2a
4x + 4
2x
−2x
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उत्तर
If y = 2x2 + a2 + 22 then `dy/dx` = 4x.
Explanation:
y = 2x2 + a2 + 22
Differentiate w.r.t. x we get,
`dy/dx = d/dx(2x^2 + a^2 + 2^2)`
∴ `dy/dx = 4x + 0 + 0`
∴ `dy/dx = 4x`
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